<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .header {
      width: 100%;
      background: yellow;
    }
    .footer {
      width: 100%;
      background: #000;
      clear: both;
    }
    .column {
      float: left;
    }

    .main {
      width: 100%;
      background: burlywood;
    }

    .main .main-wrapper {
      margin-left: 200px;
      margin-right: 300px;
    }

    .left {
      width: 200px;
      background: green;
      margin-left: -100%;
    }

    .right {
      width: 300px;
      background: purple;
      margin-left: -300px;
    }

    div {
      text-align: center;
    }


  </style>
</head>
<body>
  <h1>实现双飞翼布局</h1>
  <div class="header">header</div>
  <div class="main column">
    <div class="main-wrapper">center</div>
  </div>
  <div class="left column">left</div>
  <div class="right column">right</div>
  <div class="footer">footer</div>
</body>
</html>